Leviticus 6:15-16

15And he shall take up therefrom his handful, of the fine flour of the meal offering, and of the oil thereof, and all the frankincense which is upon the meal offering, and shall burn it upon the altar for a sweet savour, as the memorial thereof, unto the LORD.

16And that which is left thereof shall Aaron and his sons eat: it shall be eaten without leaven in a holy place; in the court of the tent of meeting they shall eat it.